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1、」■__1103121495ᑖTP393.08⚪(、ᦻ)ឋḄᑴᐰCloudStorageAccessControlSystemBasedonAttribute------SecurityCloudStorageSubsystemὅᢣᦟ、ᦟᣴ#$%&'(᪀ᦻ〇ᨴ万方数据万方数据*ᵯ,ᢈᜧ$$/0ᦻ12ឋ(ᡈ24ឋ)56᪥ḄḄ⍝,"#$%ᡠᕈ(Ḅ)ᦻ+ᡃ-#ᙠ/0ᢣ/234ḄẆ6789:;ḄẆ6ᡂ=。?
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5、²ÖḄÛÜḄv½,_îᵨᡝᦪçcᐰ◚ᩭBᜧḄcᐰ◚。ᑴᢈãᐸ+ᦻᑴᢈã+Ó¼ØCᦪçcᐰ◚Ḅ᪶ᢈã。ᙠªᩖᮣḄÓ¼Ø2,"#Ḅᑴá$VW%〉ᵨ。"ᦻᙠᑖ᪆BÓ¼Øᑴ◤'Ḅ(Ạ*,Áᔠ+ᨵᐵ,ᢈã,ñ-B(̨ឋḄÓ¼Øᑴ/#á$,0Ôᑭᵨôᵨ¨ឋè,2(̨ឋḄFèᡂᑮXACML᪾4C+5/#á$。)ᦻᡠyḄ78ᨵ,✌ᐜẆ6ᑖ᪆B+ᨵḄÓ¼Ø/#Ḅ89,ᜧ´ᑖḄᵨᡝᦪç:+ᙠÓê:+%ᦻ¼Ø,ᦪçcᐰ◚;Qᑮ;ᨵḄ<。ᐸ=,┐x"#Ó¼Ø/#Ḅ89,ñ-B(̨ឋḄÓ¼Ø
6、ᑴ/#á$,î-Bá$Ḅ4᪀78]?。Å=,@ABᦪçḄ(̨ឋḄF¼Ø,BCᵨᡝD]ᑴa;ᦪçᩗ▲,F+GᨵᦪçḄH,_+%a:ᦪç%ᦻḄ。ᨬÀ,ô]Jᑖ᪆⊤%5/#KLnMNᦪçkឋOL`CMNᦪçñòPQR、²Ö、ᦔḄᑴSḄ。ᐵ:!"#$%&ᑴXACML᪾)*+,ឋ.//01ᳮ万方数据(̨ឋḄÓ¼Øᑴ/#cᐰÓ¼Øe/#万方数据AbstractAbstractWiththedevelopmentandpopularityofCloudComputing,asanimportantpartofC
7、loudServices,CloudStoragealsocausedwidepublicconcern.CloudStorageModelusesCloudStoragetechnologytogatherourresourcedatatotheCloudServers.Accordingtotheauthorization,userscanreadtheinformationatanytime.Itprovidesbrand-newservicemodetoenterprisesandusers.ViatheInternet,theCloudS
8、torageServersmakeuseofvirtualizedstorage,distributedprocessing,managementmodetechnologytoprovideself-service,on-demandcloudstorageservices.CloudStorageprovidesefficient,convenient,dynamicscalableservice,atthesametime,ithasbroughtgreatpotentialsafetyhazardtotheuserdatasecuritya
9、ndprivacyprotection.Accesscontroltechnology,especiallytheciph